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Q.
Diamond is an example of
Chhattisgarh PMTChhattisgarh PMT 2005
Solution:
Diamond is an example of covalent solid. In the diamond crystal each carbon atom is bonded covalently to each of the four other carbon atoms situated around it tetrahedrally. Carbon-carbon bond distance are $154 \,pm$.
Diamond is a big three diamensional polymer of carbon in which each carbon atom is $s p^{3}$ hybridised.